文章内容: | 在wepy裡,props 同 properties; |
---|---|
1、将圖檔寫在樣式中進行判斷 | |
2、将圖檔寫在結構裡再進行判斷 |
1.
.nav-box 控制未點選時的效果;
2.
.nav-box-son 控制點選後的效果;
wxml:
<view class="navbar">
<block wx:for="{{navBarMian}}" wx:for-item="navItem" wx:key=" ">
<view class="nav-box {{state == index ? "nav-box-son":""}}"
bindtap="navigatorUrl" data-index="{{index}}" data-url="{{navItem.url}}">
<view class="form-box">
<button class="form-btn">{{navItem.name}}</button>
<view class="posit">
<label class="oval"></laber>
<label class="img {{navItem.icon}}"></laber>
<text class="text text-color">{{navItem.name}}</text>
</view>
</view>
</view>
</block>
</view>
<navbar state="1"> </navbar>
js:
const app = getApp();
var navBarMian = [
{
name: "搶爆款",
url: "/pages/index/index",
icon: "img1"
},
{
name: "挑實惠",
url: "/pages/marketing/index",
icon: "img4"
},
{
name: "我的",
url: "/pages/member/index/index",
icon: "img3"
},
]
Component({
properties: {
actionId: String,
state: String,
},
//響應點選導航欄
attached: function() {
var that = this
that.setData({
"navBarMian" : navBarMian
})
},
// 元件的屬性清單
methods: {
navigatorUrl: function (e) {
var url = e.currentTarget.dataset.url;
if(url){
wx.navigateTo({
url: url
})
}
}
},
})
.nav {
position: fixed;
bottom: 0;
right: 0;
left: 0;
display: flex;
background: #fff;
height: 100rpx;
z-index: 99999;
border-top: #eee 2rpx solid;
}
.nav .nav-box {
flex: 1;
text-align: center;
padding: 10rpx 0;
line-height: 0;
color: #333;
}
/* 執行 .nav-box 預設圖檔樣式 */
.nav .nav-box .img1 {
background: url("http://img.ittgc.com/images/global/nav/icon-nav-shop01.png") center no-repeat;
}
/* .nav .nav-box .img2 {
background: url("http://img.ittgc.com/images/global/nav/icon-nav-shop02.png") center no-repeat;
} */
.nav .nav-box .img3 {
background: url("http://img.ittgc.com/images/global/nav/icon-nav-shop03.png") center no-repeat;
}
.nav .nav-box .img4 {
background: url("http://img.ittgc.com/images/global/nav/icon-nav-shop04.png") center no-repeat;
}
/* 執行 .nav-box-son 滑鼠切換圖檔樣式 */
.nav .nav-box.nav-box-son .img1 {
background: url("http://img.ittgc.com/images/global/nav/icon-nav-shop-open01.png") center no-repeat;
}
/* .nav .nav-box.nav-box-son .img2 {
background: url("http://img.ittgc.com/images/global/nav/icon-nav-shop-open02.png") center no-repeat;
} */
.nav .nav-box.nav-box-son .img3 {
background: url("http://img.ittgc.com/images/global/nav/icon-nav-shop-open03.png") center no-repeat;
}
.nav .nav-box.nav-box-son .img4 {
background: url("http://img.ittgc.com/images/global/nav/icon-nav-shop-open04.png") center no-repeat;
}
/*圖檔設定*/
.nav .nav-box .img {
display: inline-block;
width: 50rpx;
height: 50rpx;
margin-bottom: 5rpx;
background-size: 100% !important;
}
/*字型設定*/
.nav .nav-box .text {
display: block;
line-height: 26rpx;
font-size: 24rpx;
color: #333;
}
/*添加.text-color,滑鼠點選後的樣式*/
.nav .nav-box.nav-box-son .text.text-color {
color: #fece00;
}
.nav .nav-box-son {
position: relative;
}
.nav .nav-box-son .img, .text {
position: relative;
}
/* button樣式 */
.form-box {
position: relative;
}
.form-box > .form-btn {
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
opacity: 0;
z-index: 9996;
}
第二種是将image直接寫在結構上,然後用三元運算符判斷目前的index值,互相對應:
如:
{{ state == 0 ?“nav-main-img”:""}} —— 當state為0時,添加class
<view class='nav {{ state == 0 ?"nav-main":""}}'>
<view class='nav-list'>
<view class='nav-box {{ state == 0 ?"nav-main-img":""}}' bindtap='navigatorUrl' data-url="/pages/index/index">
<label class='img'>
<image class='' mode='widthFix' src='/image/nav/icon-nav1.png'></image>
</label>
<label class='img'>
<image class='' mode='widthFix' src='/image/nav/icon-nav-vist1.png'></image>
</label>
<text class='text'>首頁</text>
</view>
<view class='nav-box {{ state == 1 ?"nav-main-img":""}}' bindtap='navigatorUrl' data-url="/pages/product/course/index">
<label class='img'>
<image class='' mode='widthFix' src='/image/nav/icon-nav2.png'></image>
</label>
<label class='img'>
<image class='' mode='widthFix' src='/image/nav/icon-nav-vist2.png'></image>
</label>
<text class='text'>課程</text>
</view>
<!-- data-url="/pages/artical/list/index"-->
<view class='nav-box {{ state == 2 ?"nav-main-img":""}}' bindtap='navigatorUrl' data-url="/pages/product/art/index">
<label class='img'>
<image class='' mode='widthFix' src='/image/nav/icon-nav3.png'></image>
</label>
<label class='img'>
<image class='' mode='widthFix' src='/image/nav/icon-nav-vist3.png'></image>
</label>
<text class='text'>商品</text>
</view>
<view class='nav-box {{ state == 3 ?"nav-main-img":""}}' bindtap='navigatorUrl' data-url="/pages/member/index/index">
<label class='img'>
<image class='' mode='widthFix' src='/image/nav/icon-nav4.png'></image>
</label>
<label class='img'>
<image class='' mode='widthFix' src='/image/nav/icon-nav-vist4.png'></image>
</label>
<text class='text'>個人</text>
</view>
</view>
</view>